Please make a donation to support Gunter's Space Page.
Thank you very much for visiting Gunter's Space Page. I hope that this site is useful and informative for you.
If you appreciate the information provided on this site, please consider supporting my work by making a simple and secure donation via PayPal. Please help to run the website and keep everything free of charge. Thank you very much.

Rømer (Roemer)

Rømer was an astronomy satellite project to measure small variations in luminosity of nearby stars.
It was planned to be launched in 2005.

The main instrument on the satellite was MONS (for Measuring Oscillations in Nearby Stars), to observe solar-like oscillations in stars and in this way investigate their interior structure and rotation.
Following instruments were to be carried:

MONS telescope

Optical Field Monitor

Four WATCH cameras arranged to view entire sky

Coded Mask X-ray Telescope

It was expected that Rømer was to be launched with a Russian Soyuz-FG Fregat
rocket, as a passenger on the launch of a communications satellite. This would bring the satellite into a so-called Molniya orbit, with a period of 12 hours and a largest and smallest distance from the Earth surface of around 40000 km and 600 km. This orbit allows for observations of stars anywhere in the sky in the course of the planned two-year mission.